Being persuaded to break the grain "is a combination of being persuaded and breaking the grain. On the basis of being persuaded, the purpose of breaking the grain is achieved through being persuaded." Specific statements vary, and some advocate that at the beginning of persuasion, you should drink one or two flax soup or crispy soup when you are hungry, or one or two glasses of wine, and only drink water when you are thirsty. Some people advocate reducing food gradually at the beginning of taking, reducing one mouthful a day to ten days, while others advocate not forcibly breaking the valley, and qigong will naturally break the valley after three years. Specific methods can be found in all kinds of books about Qi, according to the chapter "Bao Puzi Miscellaneous Response", that is, the eating method of twelve o'clock Qi, the eating method of old star Qi, the eating method of six or five essence Qi and the eating method of thinking Qi. Take medicine to avoid the valley "take medicine to avoid the valley", that is, take medicine to eat grain. There are many prescriptions, such as taking beans, dates, flax (sesame), chestnuts, crisp, poria cocos, Polygonatum sibiricum, asparagus, ginseng, honey and so on. High nutrition, slow digestion, making into pill paste, and taking orally 1-2 instead of granules after crushing. One formula is high in nutrition and difficult to digest. After a full meal, it will definitely break down and can be used for a long time. Another is to eat rice and then support what you eat with medicine. It is said that it can break the valley for three years. Others use herbs to cook certain stones and eat them. For the specific prescription, please refer to Taiqing Meridian Breaking Valley Method and Yun Qi Seven-Mega Prescription Pharmacy. First, according to modern medical research, the aging and diseases of the human body are mainly due to the accumulation and fermentation of feces in the large intestine, which produces harmful substances and makes the human body chronically poisoned. Therefore, from the point of view of human health, wastes in the human body include feces, urine, sweat, carbon dioxide and so on. And feces are the most harmful. The large intestine is dedicated to storing feces. If it can't be removed, it will produce all kinds of toxins, become factories of various chronic diseases and become the source of all diseases. Therefore, in order to treat diseases, we must first clean the stomach and keep the internal environment and space clean, so as to promote the functions of various organs and improve the immunity. Such as heart disease, hematological diseases, fatty liver, hepatitis B, diabetes, gynecological diseases, rheumatic diseases, hypertension, obesity syndrome, gastrointestinal diseases, rhinitis, asthma, silicosis, systemic edema and halitosis. It is called an incurable disease that is not cancer by the medical community, and unexpected results can be obtained by breaking the valley. With the increase of the valley-crossing schedule, the number of white blood cells in the body is twice or several times higher than normal, so as to devour pathogenic bacteria and cure incurable diseases and even incurable diseases. Bigu can systematically improve and regulate the digestive system. The functions of circulatory system, respiratory system, nervous system, reproductive system and urinary system have no toxic and side effects-this is beyond the reach of any medicine. Secondly, it is also a good bodybuilding method, which fundamentally solves the problem of energy absorption, not only makes fat people slim down, but also makes thin people fat, makes the skin shiny and clean, and plays a role of two-way adjustment. Thirdly, from the perspective of qigong health cultivation, regular and irregular crossing the valley can make cells in a state of "lack of food and gas", make the gas inside and outside the human body communicate, produce the effect of harmony between man and nature, accelerate the exchange of material and energy between cells and the outside world, seize the true spirit of nature, and at the same time make people more relaxed and calm, develop the potential of the brain and enlighten wisdom, which is a shortcut to improve the cultivation level. At the same time, it can also lower body temperature, slow down the number of pulse beats, delay aging, and live a long and healthy life. Efficacy can strengthen the brain, improve intelligence and develop human potential. Because of the removal of excess fat and toxins from the body, the body has been thoroughly cleaned, the stomach has been adjusted and conditioned, and the mind has been clarified and sublimated. Temperament can be cultivated, vision can be broadened, life can be understood, and truth can be understood. Make people have a new view of life and the world and a new understanding of the universe and nature. From the perspective of modern medicine, the human liver is a biochemical factory, which is both a digestive organ and a detoxification organ. After normal people eat it, whether it is toxic or non-toxic, it must be decomposed or combined by the liver before it can enter the human blood. Because of eating less, the burden on the liver becomes lighter, and it will go back to remove toxins from the blood, reduce the depth of toxins, and synthesize active substances beneficial to the body's immunity. For example, after fasting, high-density lipoprotein in blood will increase, which can reduce blood lipid, repair arteriosclerosis and reverse coronary heart disease and hypertension. It has a deeper meaning. It is not simply starvation, but the special effect brought by practice. According to China's theory, everyone has a positive system and a negative system. Positive system is what we use every day, such as the whole digestive system; Bigu is a method to turn off the positive system (and stop the secretion of gastric acid at the same time) and turn on the negative system. In this state, the brain is always in a brand-new functional state, physical strength and potential are fully adjusted and exerted, physical load is reduced, yuan Shen is fully utilized and exerted, and the functions of brain cells are fully mobilized. Therefore, people actively communicate with the natural universe, and all kinds of external information are continuously input into the brain. This is the so-called "harmony between man and nature". So in this state, even if people don't eat for a few days, they won't feel hungry, but their physical and mental state will be strengthened. These are manifested in flexible limbs, bright eyes, clear mind, quick thinking, enhanced memory, enhanced understanding, enhanced willpower and endurance, which are easy to stimulate and induce various potentials of the human body. At the same time, it also produces thinking and understanding of the true meaning of the universe, thus producing all kinds of special thinking, solving many problems and puzzles that cannot be solved under normal circumstances, and finally leading to a leap in spiritual strength and wisdom inspiration. However, there are many theories left by China in ancient times, some of which are close to metaphysical theories. After all, this negative system has not been proved, and no one can not eat for a lifetime. Many people who try to avoid food believe in it too much, and there are countless examples of forcing people to avoid food causing physical harm. Modern biomedical research shows that controlling nutrient intake is one of the ways to delay cell aging, and its principle may be to reduce the insulin level in the body, thus relieving the inhibition of autophagy. Autophagy is an important mechanism to remove damaged protein or aging organelles accumulated in cells over time, thus maintaining a stable state.